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Chemistry, 26.05.2021 18:20 Amholloway13

Which element has 2 valence electrons? O argon (Ar)
Oboron (B)
o cesium (Cs)
magnesium (Mg)

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Which element has 2 valence electrons? O argon (Ar)
Oboron (B)
o cesium (Cs)
magn...
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